Frage 1
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How many electrons in Ca(2+)?
Frage 2
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Electrons can only orbit nuclei in fixed orbits with specific characteristic energy levels.
Frage 3
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Ionisation of an atom is the process in which the subatomic particle, the [blank_start]electron[blank_end], is removed. The outermost particle will have the [blank_start]least[blank_end] binding energy, and so will be most [blank_start]easy[blank_end] to remove. As the particles are taken away, the energy increases, increasing the amount of energy required.
Frage 4
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Insert a number, eg 1, 4, 26, 32. If no electrons, put in 0.
How many electrons in each shell:
Magnesium:
1st: [blank_start]2[blank_end]
2nd: [blank_start]8[blank_end]
3rd: [blank_start]2[blank_end]
4th: [blank_start]0[blank_end]
5th: [blank_start]0[blank_end]
Frage 5
Frage
Insert a number, eg 1, 4, 26, 32. If no electrons, put in 0.
How many electrons in each shell?
Cl-
1st: [blank_start]2[blank_end]
2nd: [blank_start]8[blank_end]
3rd: [blank_start]8[blank_end]
4th: [blank_start]0[blank_end]
Frage 6
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What atom/element is pictured below, and how many valence electrons does it have?
Present your answer in this format: name,#
Eg: hydrogen,25
Frage 7
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What is the maximum number of electrons an atom can have in the 2nd shell?
[blank_start]8[blank_end]
Frage 8
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What is the electronic configuration of Argon?
Eg: 6,9,12,14 (no spaces, just commas)
[blank_start]2,8,8[blank_end]
Frage 9
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Which element is represented by this electronic configuration?
2,8,8,1
Antworten
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Calcium
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Sodium
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Potassium
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Lithium
Frage 10
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Which atom(s) can be represented by this electronic configuration?
2,8
Antworten
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F-
-
Na-
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Mg+
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Ne
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Na+
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Mg(2+)
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Al(3-)